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Geography

Which outcome arises when high winds exceed threshold friction velocities across desert dunes?

A)Increased suspended sediment transport
B)Stabilized dune crest morphology
C)Diminished abrasion of adjacent surfaces
D)Decreased formation of barchan dunes

💡 Explanation

Increased suspended sediment load occurs because saltation destabilizes the surface through aerodynamic lift, leading to increased grain detachment; this leads to greater transport through suspension, rather than stabilized dunes because the wind force exceeds the surface stability.

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